diff mbox series

[v2,1/5] vfio: vfio_iommu_type1: linux header place holder

Message ID 1558614300-24574-2-git-send-email-pmorel@linux.ibm.com
State New
Headers show
Series Retrieving zPCI specific info from QEMU | expand

Commit Message

Pierre Morel May 23, 2019, 12:24 p.m. UTC 
This should be copied from Linux kernel UAPI includes.
The version used here is Linux 5.1.0

We define a new device region in vfio.h to be able to
get the ZPCI CLP information by reading this region from
userland.

We create a new file, vfio_zdev.h to define the structure
of the new region we defined in vfio.h

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
---
 linux-headers/linux/vfio.h      | 14 +++++++++++---
 linux-headers/linux/vfio_zdev.h | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 3 deletions(-)
 create mode 100644 linux-headers/linux/vfio_zdev.h
diff mbox series

Patch

diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h
index 12a7b1d..56595b8 100644
--- a/linux-headers/linux/vfio.h
+++ b/linux-headers/linux/vfio.h
@@ -9,8 +9,8 @@ 
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#ifndef VFIO_H
-#define VFIO_H
+#ifndef _UAPIVFIO_H
+#define _UAPIVFIO_H
 
 #include <linux/types.h>
 #include <linux/ioctl.h>
@@ -306,6 +306,10 @@  struct vfio_region_info_cap_type {
 #define VFIO_REGION_TYPE_GFX                    (1)
 #define VFIO_REGION_SUBTYPE_GFX_EDID            (1)
 
+/* IBM Subtypes */
+#define VFIO_REGION_TYPE_IBM_ZDEV		(1)
+#define VFIO_REGION_SUBTYPE_ZDEV_CLP		(1)
+
 /**
  * struct vfio_region_gfx_edid - EDID region layout.
  *
@@ -353,6 +357,10 @@  struct vfio_region_gfx_edid {
 #define VFIO_DEVICE_GFX_LINK_STATE_DOWN  2
 };
 
+#define VFIO_REGION_TYPE_CCW			(2)
+/* ccw sub-types */
+#define VFIO_REGION_SUBTYPE_CCW_ASYNC_CMD	(1)
+
 /*
  * 10de vendor sub-type
  *
@@ -910,4 +918,4 @@  struct vfio_iommu_spapr_tce_remove {
 
 /* ***************************************************************** */
 
-#endif /* VFIO_H */
+#endif /* _UAPIVFIO_H */
diff --git a/linux-headers/linux/vfio_zdev.h b/linux-headers/linux/vfio_zdev.h
new file mode 100644
index 0000000..84b1a82
--- /dev/null
+++ b/linux-headers/linux/vfio_zdev.h
@@ -0,0 +1,34 @@ 
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Region definition for ZPCI devices
+ *
+ * Copyright IBM Corp. 2019
+ *
+ * Author(s): Pierre Morel <pmorel@linux.ibm.com>
+ */
+
+#ifndef _VFIO_ZDEV_H_
+#define _VFIO_ZDEV_H_
+
+#include <linux/types.h>
+
+/**
+ * struct vfio_region_zpci_info - ZPCI information.
+ *
+ */
+struct vfio_region_zpci_info {
+	__u64 dasm;
+	__u64 start_dma;
+	__u64 end_dma;
+	__u64 msi_addr;
+	__u64 flags;
+	__u16 pchid;
+	__u16 mui;
+	__u16 noi;
+	__u8 gid;
+	__u8 version;
+#define VFIO_PCI_ZDEV_FLAGS_REFRESH 1
+	__u8 util_str[CLP_UTIL_STR_LEN];
+} __packed;
+
+#endif